Patents by Inventor John C. Field

John C. Field has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6848670
    Abstract: An access port includes a process port with a removable valve core. An adapter is receivable within an end of the process port, and includes a depressor which can engage a valve within the valve core. The process port allows correction of standard female coupling members for rapid in-plant processing of air conditioning and refrigeration systems; while the use of the adapter with the process port permits the connection of standard field service equipment, to facilitate repair of the air conditioning and refrigeration systems.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: February 1, 2005
    Assignee: Parker-Hannifin Corporation
    Inventors: Gregory A. Haunhorst, Keith H. Gifford, John C. Field
  • Publication number: 20030015679
    Abstract: An access port includes a process port with a removable valve core. An adapter is receivable within an end of the process port, and includes a depressor which can engage a valve within the valve core. The process port allows correction of standard female coupling members for rapid in-plant processing of air conditioning and refrigeration systems; while the use of the adapter with the process port permits the connection of standard field service equipment, to facilitate repair of the air conditioning and refrigeration systems.
    Type: Application
    Filed: May 30, 2002
    Publication date: January 23, 2003
    Inventors: Gregory A. Haunhorst, Keith H. Gifford, John C. Field
  • Patent number: 6481756
    Abstract: A coupling assembly for use in connecting fluid lines having a unitary female body and a male coupling portion. The female body includes at least two passageways having frangible diaphragms. The male coupling portion includes at least two male coupling halves having frangible diaphragms. Cutting devices are positioned in the passageways of the female body. As the male coupling portion is moved toward the female body by a bracket and fastening device, the diaphragms are ruptured to allow fluid flow between the lines.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: November 19, 2002
    Assignee: Parker-Hannifin Corporation
    Inventors: John C. Field, John C. Stemmler, Michael P. Wells, Christopher E. Schadewald, Gregory A. Haunhorst
  • Patent number: 6382678
    Abstract: A coupling assembly for use in connecting fluid lines having a unitary female body and a male coupling portion. The female body includes at least two passageways having frangible diaphragms. The male coupling portion includes at least two male coupling halves having frangible diaphragms. Cutting devices are positioned in the passageways of the female body. As the male coupling portion is moved toward the female body by a bracket and fastening device, the diaphragms are ruptured to allow fluid flow between the lines.
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: May 7, 2002
    Assignee: Parker-Hannifin Corporation
    Inventors: John C. Field, John C. Stemmler, Michael P. Wells, Christopher E. Schadewald, Gregory A. Haunhorst
  • Patent number: 5979448
    Abstract: A device is provided for use to retain a condom or similar construction on the penis of a wearer, during intercourse. The device includes a trough member and an arrangement for maintaining the trough member in operative association on the user's penis, during performance of intercourse. A combination including a condom and such a device is also provided, as well as a method of use.
    Type: Grant
    Filed: August 27, 1997
    Date of Patent: November 9, 1999
    Assignee: Gain, Incorporated
    Inventors: James M. Weller, John C. Field
  • Patent number: 5667471
    Abstract: A device is provided for use as a prosthesis in supporting the penis of a wearer, during intercourse. The prosthesis comprises an elongate trough member and an arrangement for maintaining the trough member in operative association over the user's penis, during performance of intercourse. A retaining strap is provided to facilitate retaining of the prosthesis in place.
    Type: Grant
    Filed: April 29, 1996
    Date of Patent: September 16, 1997
    Assignee: Gain, Incorporated
    Inventors: James M. Weller, John C. Field
  • Patent number: 5179976
    Abstract: A fluid coupling is disclosed. The fluid coupling includes first and second coupling parts which define a passageway. A valve is provided in the passageway. The valve is adapted to open upon interconnection of the coupling parts. One of the coupling parts includes at least one guide groove, while the other coupling part includes at least one key pin receivable by the guide groove. The coupling parts can only be interconnected upon alignment of the key pin with the guide groove.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: January 19, 1993
    Assignee: Aeroquip Corporation
    Inventors: John D. Boland, Paul J. Fournier, John C. Field, David S. Densel
  • Patent number: 4793637
    Abstract: A push-to-connect tube connector for interconnecting conduits wherein a male part is received within a female part passage by relative axial displacement. Resilient fingers mounted upon one part cooperate with a shoulder defined on the other part to maintain the parts fully connected, seals interposed between the parts prevent leakage, and indicia means in the form of a sleeve axially displaceable upon the male part supports an indicator displaced thereon by the female part during connection to provide a visual indication of the degree of interconnection. A reference mark defined on the sleeve is masked by the indicator upon the parts being fully connected. Upon removal of the indicator, which is in the form of a split ring, the sleeve may be used to "open" the fingers to disconnect the parts, and in an embodiment non-circular transverse cross sections defined on the respective parts telescopingly cooperate during full connection to prevent relative rotation between the parts.
    Type: Grant
    Filed: September 14, 1987
    Date of Patent: December 27, 1988
    Assignee: Aeroquip Corporation
    Inventors: Robert A. Laipply, John C. Field
  • Patent number: D394504
    Type: Grant
    Filed: February 10, 1997
    Date of Patent: May 19, 1998
    Assignee: Gain, Incorporated
    Inventors: James M. Weller, John C. Field
  • Patent number: D414264
    Type: Grant
    Filed: August 27, 1997
    Date of Patent: September 21, 1999
    Assignee: Gain, Incorporated
    Inventors: James M. Weller, John C. Field